package com.atguigu.gulimall.product.service.impl;

import com.alibaba.fastjson.TypeReference;
import com.atguigu.common.constant.ProductConstant;
import com.atguigu.common.to.SkuHasStockVO;
import com.atguigu.common.to.SkuReductionTo;
import com.atguigu.common.to.SpuBoundTo;
import com.atguigu.common.to.es.SkuEsModel;
import com.atguigu.common.tool.utils.Func;
import com.atguigu.common.tool.utils.StringPool;
import com.atguigu.common.utils.PageUtils;
import com.atguigu.common.utils.Query;
import com.atguigu.common.utils.R;
import com.atguigu.gulimall.product.dao.SpuInfoDao;
import com.atguigu.gulimall.product.entity.*;
import com.atguigu.gulimall.product.feign.CouponFeignService;
import com.atguigu.gulimall.product.feign.SearchFeignService;
import com.atguigu.gulimall.product.feign.WareFeignService;
import com.atguigu.gulimall.product.service.*;
import com.atguigu.gulimall.product.vo.*;
import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.baomidou.mybatisplus.core.metadata.IPage;
import com.baomidou.mybatisplus.core.toolkit.Wrappers;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import lombok.AllArgsConstructor;
import org.springframework.beans.BeanUtils;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;
import org.springframework.util.StringUtils;

import java.math.BigDecimal;
import java.util.*;
import java.util.stream.Collectors;

/**
 * spu信息
 *
 * @author wenchao.long
 * @email wenchao.long@gmail.com
 * @date 2021-06-12 22:51:26
 */
@Service("spuInfoService")
@AllArgsConstructor
public class SpuInfoServiceImpl extends ServiceImpl<SpuInfoDao, SpuInfoEntity> implements SpuInfoService {

    private final SpuInfoDescService spuInfoDescService;

    private final SpuImagesService imagesService;

    private final AttrService attrService;

    private final ProductAttrValueService attrValueService;

    private final SkuInfoService skuInfoService;

    private final SkuImagesService skuImagesService;

    private final SkuSaleAttrValueService skuSaleAttrValueService;

    private final CouponFeignService couponFeignService;

    private final WareFeignService wareFeignService;

    private final BrandService brandService;

    private final CategoryService categoryService;

    private final SearchFeignService searchFeignService;

    @Override
    public PageUtils queryPage(Map<String, Object> params) {
        IPage<SpuInfoEntity> page = this.page(
                new Query<SpuInfoEntity>().getPage(params),
                new QueryWrapper<>()
        );

        return new PageUtils(page);
    }

    @Transactional(rollbackFor = Exception.class)
    @Override
    public void saveSpuInfo(SpuSaveVo vo) {
        // 1. 保存spu基本信息 pms_spu_info
        SpuInfoEntity infoEntity = new SpuInfoEntity();
        BeanUtils.copyProperties(vo, infoEntity);

        infoEntity.setCreateTime(new Date());
        infoEntity.setUpdateTime(new Date());
        save(infoEntity);

        //2、保存Spu的描述图片 pms_spu_info_desc
        List<String> decript = vo.getDecript();
        SpuInfoDescEntity descEntity = new SpuInfoDescEntity();
        descEntity.setSpuId(infoEntity.getId());
        descEntity.setDecript(String.join(",", decript));
        spuInfoDescService.save(descEntity);

        //3、保存spu的图片集 pms_spu_images
        List<String> images = vo.getImages();
        imagesService.saveImages(infoEntity.getId(), images);

        //4、保存spu的规格参数;pms_product_attr_value
        List<BaseAttrs> baseAttrs = vo.getBaseAttrs();
        List<ProductAttrValueEntity> collect = baseAttrs.stream()
                .map(attr -> {
                    ProductAttrValueEntity valueEntity = new ProductAttrValueEntity();
                    valueEntity.setAttrId(attr.getAttrId());
                    AttrEntity id = attrService.getById(attr.getAttrId());
                    valueEntity.setAttrName(id.getAttrName());
                    valueEntity.setAttrValue(attr.getAttrValues());
                    valueEntity.setQuickShow(attr.getShowDesc());
                    valueEntity.setSpuId(infoEntity.getId());

                    return valueEntity;
                })
                .collect(Collectors.toList());
        attrValueService.saveBatch(collect);

        //5、保存spu的积分信息；gulimall_sms->sms_spu_bounds
        Bounds bounds = vo.getBounds();
        SpuBoundTo spuBoundTo = new SpuBoundTo();
        BeanUtils.copyProperties(bounds, spuBoundTo);
        spuBoundTo.setSpuId(infoEntity.getId());
        R r = couponFeignService.saveSpuBounds(spuBoundTo);
        if (r.getCode() != 0) {
            log.error("远程保存spu积分信息失败");
        }

        //5、保存当前spu对应的所有sku信息；
        List<Skus> skus = vo.getSkus();
        if (Func.isNotEmpty(skus)) {
            skus.forEach(item -> {
                String defaultImg = "";
                for (Images image : item.getImages()) {
                    if (image.getDefaultImg() == 1) {
                        defaultImg = image.getImgUrl();
                    }
                }

                SkuInfoEntity skuInfoEntity = new SkuInfoEntity();
                BeanUtils.copyProperties(item, skuInfoEntity);
                skuInfoEntity.setBrandId(infoEntity.getBrandId());
                skuInfoEntity.setCatalogId(infoEntity.getCatalogId());
                skuInfoEntity.setSaleCount(0L);
                skuInfoEntity.setSpuId(infoEntity.getId());
                skuInfoEntity.setSkuDefaultImg(defaultImg);
                //5.1）、sku的基本信息；pms_sku_info
                skuInfoService.save(skuInfoEntity);

                Long skuId = skuInfoEntity.getSkuId();

                List<SkuImagesEntity> imagesEntities = item.getImages()
                        .stream()
                        .map(img -> {
                            SkuImagesEntity skuImagesEntity = new SkuImagesEntity();
                            skuImagesEntity.setSkuId(skuId);
                            skuImagesEntity.setImgUrl(img.getImgUrl());
                            skuImagesEntity.setDefaultImg(img.getDefaultImg());
                            return skuImagesEntity;
                        })
                        .filter(entity -> {
                            //返回true就是需要，false就是剔除
                            return !StringUtils.isEmpty(entity.getImgUrl());
                        })
                        .collect(Collectors.toList());

                //5.2）、sku的图片信息；pms_sku_image
                skuImagesService.saveBatch(imagesEntities);

                List<Attr> attr = item.getAttr();
                List<SkuSaleAttrValueEntity> skuSaleAttrValueEntities = attr.stream()
                        .map(a -> {
                            SkuSaleAttrValueEntity attrValueEntity = new SkuSaleAttrValueEntity();
                            BeanUtils.copyProperties(a, attrValueEntity);
                            attrValueEntity.setSkuId(skuId);

                            return attrValueEntity;
                        })
                        .collect(Collectors.toList());
                //5.3）、sku的销售属性信息：pms_sku_sale_attr_value
                skuSaleAttrValueService.saveBatch(skuSaleAttrValueEntities);

                // //5.4）、sku的优惠、满减等信息；gulimall_sms->sms_sku_ladder\sms_sku_full_reduction\sms_member_price
                SkuReductionTo skuReductionTo = new SkuReductionTo();
                BeanUtils.copyProperties(item, skuReductionTo);
                skuReductionTo.setSkuId(skuId);
                if (skuReductionTo.getFullCount() > 0 || skuReductionTo.getFullPrice().compareTo(new BigDecimal(StringPool.ZERO)) > 0) {
                    R r1 = couponFeignService.saveSkuReduction(skuReductionTo);
                    if (r1.getCode() != 0) {
                        log.error("远程保存sku优惠信息失败");
                    }
                }
            });
        }

    }

    @Override
    public PageUtils queryPageByCondition(Map<String, Object> params) {

        String key = (String) params.get("key");
        String status = (String) params.get("status");
        String brandId = (String) params.get("brandId");
        String catelogId = (String) params.get("catelogId");

        IPage<SpuInfoEntity> page = page(new Query<SpuInfoEntity>().getPage(params),
                Wrappers.<SpuInfoEntity>lambdaQuery()
                        .and(Func.isNotEmpty(key), i -> i.eq(SpuInfoEntity::getId, key).or()
                                .like(SpuInfoEntity::getSpuName, key))
                        .eq(Func.isNotEmpty(status), SpuInfoEntity::getPublishStatus, status)
                        .eq(Func.isNotEmpty(brandId) && !StringPool.ZERO.equalsIgnoreCase(brandId), SpuInfoEntity::getBrandId, brandId)
                        .eq(Func.isNotEmpty(catelogId), SpuInfoEntity::getCatalogId, catelogId)


        );

        return new PageUtils(page);
    }

    @Override
    public void upSpuForSearch(Long spuId) {
        //1、查出当前spuId对应的所有sku信息,品牌的名字
        List<SkuInfoEntity> skuInfoEntities = skuInfoService.list(Wrappers.<SkuInfoEntity>lambdaQuery()
                .eq(SkuInfoEntity::getSpuId, spuId));

        //TODO 4、查出当前sku的所有可以被用来检索的规格属性
        List<ProductAttrValueEntity> productAttrValueEntities = attrValueService.list(Wrappers.<ProductAttrValueEntity>lambdaQuery()
                .eq(ProductAttrValueEntity::getSpuId, spuId));

        List<Long> attrIds = productAttrValueEntities.stream()
                .map(ProductAttrValueEntity::getAttrId)
                .collect(Collectors.toList());

        List<Long> searchIds = attrService.listObjs(Wrappers.<AttrEntity>lambdaQuery()
                        .select(AttrEntity::getAttrId)
                        .in(AttrEntity::getAttrId, attrIds)
                        .eq(AttrEntity::getSearchType, 1),
                o -> (Long) o
        );
        Set<Long> ids = new HashSet<>(searchIds);

        List<SkuEsModel.Attr> searchAttrs = productAttrValueEntities.stream()
                .filter(entity -> ids.contains(entity.getAttrId()))
                .map(entity -> {
                    SkuEsModel.Attr attr = new SkuEsModel.Attr();
                    BeanUtils.copyProperties(entity, attr);
                    return attr;
                })
                .collect(Collectors.toList());

        //TODO 1、发送远程调用，库存系统查询是否有库存
        Map<Long, Boolean> stockMap = null;
        try {
            List<Long> longList = skuInfoEntities.stream()
                    .map(SkuInfoEntity::getSkuId)
                    .collect(Collectors.toList());
            R r = wareFeignService.getSkuHasStocks(longList);
            TypeReference<List<SkuHasStockVO>> typeReference = new TypeReference<List<SkuHasStockVO>>() {

            };
            stockMap = r.getData(typeReference)
                    .stream()
                    .collect(Collectors.toMap(SkuHasStockVO::getSkuId, SkuHasStockVO::getHasStock));
        } catch (Exception e) {
            log.error("远程调用库存服务失败,原因{}", e);
        }

        //2、封装每个sku的信息
        Map<Long, Boolean> finalStockMap = stockMap;
        List<SkuEsModel> skuEsModels = skuInfoEntities.stream()
                .map(sku -> {
                    SkuEsModel skuEsModel = new SkuEsModel();
                    BeanUtils.copyProperties(sku, skuEsModel);
                    skuEsModel.setSkuPrice(sku.getPrice());
                    skuEsModel.setSkuImg(sku.getSkuDefaultImg());
                    //TODO 2、热度评分。0
                    skuEsModel.setHotScore(0L);
                    //TODO 3、查询品牌和分类的名字信息
                    BrandEntity brandEntity = brandService.getById(sku.getBrandId());
                    if (brandEntity != null) {
                        skuEsModel.setBrandName(brandEntity.getName());
                        skuEsModel.setBrandImg(brandEntity.getLogo());
                    }
                    CategoryEntity categoryEntity = categoryService.getById(sku.getCatalogId());
                    skuEsModel.setCatalogName(categoryEntity.getName());
                    //设置可搜索属性
                    skuEsModel.setAttrs(searchAttrs);
                    //设置是否有库存
                    skuEsModel.setHasStock(finalStockMap != null && finalStockMap.get(sku.getSkuId()));
                    return skuEsModel;
                })
                .collect(Collectors.toList());

        //TODO 5、将数据发给es进行保存：gulimall-search
        R r = searchFeignService.saveProductAsIndices(skuEsModels);
        if (r.getCode() == 0) {
            // 修改当前spu的状态
            this.update(Wrappers.<SpuInfoEntity>lambdaUpdate()
                    .set(SpuInfoEntity::getPublishStatus, ProductConstant.ProductStatusEnum.SPU_UP.getCode())
                    .set(SpuInfoEntity::getUpdateTime, new Date())
                    .eq(SpuInfoEntity::getId, spuId)
            );
        } else {
            // 远程调用失败
            // TODO 7. 重复调用
            log.error("商品远程es保存失败");
        }

    }

}
